Solar panel



FIG. 1 is a top plan view of a solar panel showing my new design;

FIG. 2 is a perspective view thereof; and,

FIG. 3 is a side elevational view thereof, the opposite side being a mirror image thereof.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design. The bottom view is plain and unornamented. 

CLAIM I claim the ornamental design for a solar panel, as shown and described. 